32571-82-7Relevant articles and documents
Brilliant blue disperse dye and application thereof
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Paragraph 0031-0034, (2021/09/08)
The invention discloses a brilliant blue disperse dye which is synthesized by anthraquinone acid dye and comprises more than one component shown as a structural formula (I), and in the formula, R1, R2 and R3 are -H,-CH3,-NHCOCH3 and -SO2CH2CH2OH. The brilliant blue disperse dye is energy-saving, emission-reducing, high in productivity and simple in synthesis process, while other anthraquinone brilliant blue disperse dyes such as 60 blue and 56 blue disperse dyes are complex in process, low in yield and much in wastewater.
35. Ueber die Dicyanierung der 1,4-Diaminoanthrachinone und die Reactivitaet der 1,4-Diamino-9,10-dioxo-9,10-dihydroanthracen-2,3-dicarbonitrile gegenueber nucleophilen Reagenzien
Adam, Jean-Marie,Winkler, Tammo
, p. 411 - 421 (2007/10/02)
The reaction of 1-amino-9,10-dioxo-4-phenylamino-9,10-dihydroanthracene-2-sulfonic acid (1, R=C6H5) with cyanide in water yields a mixture of 1-amino-9,10-dioxo-4-phenylamino-9,10-dihydroanthracene-2-carbonitrile (3, R=C6H5) and 1-amino-4-(phenylamino)anthraquinone (4, R=C6H5) under the usual reaction conditions (Scheme 1).In dimethylsulfoxide, however, a second cyano group is introduced, and 1-amino-9,10-dioxo-4-phenylamino-9,10-dihydroanthracene-2,3-dicarbonitrile (7) is formed (Scheme 2).The cyano groups are very reactive towards nucleophiles.The cyano group in 2-position can be substituted by hydroxide and aliphatic amines (Schemes 5 and 6).The cyano group in 3-position can be eliminated by aliphatic amines and hydrazine (Scheme 7).Nucleophilic attack at the cyano C-atom of the 2-cyano group by suitable reagents leads to ring formation, yielding e.g. 2-(Δ2-1,3-oxazolin-2-yl)-, 2-(benzimidazol-2-yl)- and 2-(1H-tetrazol-5-yl)anthraquinones (Schemes 8 and 10).